So where does Bolivia come into the picture? The introduction of the lithium-ion battery allows cars to go farther on a single charge, making them more convenient and economically viable. But there is a catch: The lithium needed for these batteries is a limited resource, and according to this BBC video report, half of the world’s supply is under Bolivia’s salt flats.

Bolivia, the poorest country in South America, could benefit enormously from mining and processing lithium. But extraction industries have always been controversial. Political tensions over exporting natural gas have ended two presidencies and led to calls for regional autonomy. These tensions have damaged Bolivia's tourism industry, which makes up 6.1 percent of Bolivia's economy.

Mining lithium poses a potential economic Catch-22. Most tourists are drawn by Bolivia’s unspoiled landscape, with the salt flats being a particular point of interest. Mining for lithium could destroy the salt flats, while processing could lead to environmental degradation.

Although electric cars have often been hailed as the future of an environmentally conscious auto industry, lithium has the same Achilles heel as oil: it is a scarce resource. In addition, it is unclear whether the auto industry will even have access to the amount of lithium they would need to launch these ambitious plans. Bolivia’s president Evo Morales is famously cautious about allowing foreigners to mine, and he's considered a fierce environmental protectionist. The decision to mine the salt flats is Bolivia's. Ultimately, the country will have to weigh the benefits of economic development against environmental protection, tourism and foreign influence.

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